eval

Validate agent skills with linting and LLM-based calibration drift detection.

2|Updated Mar 19, 2026
One-click install
npx skills add https://github.com/alex-voloshin-dev/ai-skills --skill eval-alex-voloshin-dev
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: eval
Source: https://github.com/alex-voloshin-dev/ai-skills/tree/main/plugin/skills/eval
Command: npx skills add https://github.com/alex-voloshin-dev/ai-skills --skill eval-alex-voloshin-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires anthropic, and includes scripts (resource) components.

What problem does it solve?

This skill addresses the challenge of ensuring agent reliability by providing a structured harness to detect calibration drift, rubric regressions, and linting errors before code reaches production.

Core Features & Use Cases

  • Tier 1 Linting: Performs automated schema, frontmatter, and syntax checks on skills without requiring LLM calls.
  • Tier 2 Calibration: Uses an LLM judge to score calibration samples against established rubrics, catching drift in rubric definitions, judge models, or sample quality.
  • Use Case: Run a full pre-release validation pass across all skills to ensure that recent changes haven't introduced regressions in prompt-following or output quality.

Quick Start

Use the eval skill to run the Tier 1 linters and Tier 2 calibration smoke tests across all available skills.

Frequently Asked Questions about eval

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test agent skills for calibration drift and rubric regressions?

Testing agent skills for calibration drift requires a multi-tier evaluation harness that runs static linting and LLM-based calibration checks against established rubrics to detect regressions before production deployment.

What is LLM-based calibration in quality assurance for agents?

LLM-based calibration in quality assurance uses a judge model to score agent outputs against defined rubric samples, detecting drift in prompt-following consistency and output quality during pre-release validation workflows.

Do I need the Anthropic API and Python SDK to run agent skill evaluations?

Yes, executing LLM judge-based scoring for agent skill evaluation requires Anthropic API access and the official Python SDK to perform calibration tests and detect rubric adherence issues.

Can I run linting checks on agent skills without making LLM API calls?

Yes, Tier 1 linting performs automated schema, frontmatter, and syntax checks on agent skills without requiring LLM calls, providing a fast first-pass validation layer before deeper calibration testing.

What's the best way to validate multiple agent skills before a release?

The best way to validate multiple agent skills pre-release is running a full evaluation pass that combines Tier 1 automated linting with Tier 2 LLM-based calibration smoke tests across all available skills to catch regressions.

Why does my agent skill evaluation fail on schema and syntax checks?

Agent skill evaluation fails on schema and syntax checks when automated linting detects frontmatter misconfigurations or structural errors, preventing downstream LLM-based calibration tests from executing reliably.